Water pump and aerator for cooling systems



F. F. KRAUSE.

WATER PUMP AND AERATOR FOR COOLING SYSTEMS.

APPLICATION HLED MAY 26, 1920.

1,370,823, Patented Mar. 8, 1921.

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F. F. KHAUSE.

WATER PUMP AND AEHATOR FOR-COOLING SYSTEMS.

APPLICATION FILED MAY 25- I920.

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Patented Mar. 8, 1921.

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FRANK F. KRAUSE, OF CASHMERE, WASHINGTON.

WATER PUMP AND AERATOR FOR COOLING SYSTEMS.

Application filed May 26,

To all whom it may concern I Be it known that I, FRANK. F. Kaausn, a citizen of the United States, residing at Cashmere. in the county of Chelan and State of Washington, have invented certain new and useful Improvements in ater Pumps and Aerators for Cooling Systems, of which the following is a specification.

This invention relates to water pumps and aci'ators for cooling systems, and is an 1m proveinent on my allowed appiication Serial No. 3111.659 filed July 14', 19l9,and the primary object of the present invention is to prm ide means for positively circulating the cooling fluid through the cooling system and for positively aerating the same prior to its entrance to the cooling jackets of the device or motor to be cooled, thereby insuring that the cooling fluid will be acted upon by the incoming air and be effectively cooled. so that a maximum benefit will he obtained from the cooling fluid.

. Another object of the invention is to provide a means for forcing a steady stream of the cooling fluid against the aerating blades. and. for checking the rotary movement of the CUUlllig fluid as the same is being acted "on by the aerating blades.

A further object of the invention is to provide an improved means for automatically closing the air intake pipe for the aerating blades when the motor is not in operation, so as to prevent the escape of the coolim fluid from the air intake pipe.

A further object of the invenlion is to provide an improved air intaking blade for the cooling, fluid. which is so ronstruct d as to permit a maximum amount of air to be taken in from the intake pipe through the blade and for mixing the same vilih the cooling fluid.

further nbjecl of the invention is to Y provide an improved water pump for coolinc systems of the ahovc characters which is durahle and ellirient in use. one that is simple and easy to in.:nui'arturia one that [can implored upon the market at a reasonable cost, and one which can be installed cheaply and conv nientlyin misting cooling sysh-ms or cInImdir-d therein at the time of manufacture. A still furthciobject of the inventioi'i is to provide an improved means for rotatahly mounting the hollow sha ft carrying the circulating propeller and the aerating blades,

Specification of Letters Patent.

Patented Mar. 8, 1921.

1920. Serial No. 384,421.

so as to effectively hold the shaft in alinement and to eliminate all end thrust.

With these and-other objects in view, the invention consists in the novel construction arrangement and forn'iation of parts, as will he hereinafter more specifically described, claimed and illustrated in the accompanying drawings, forming a part of this specification, in which drawings:

Figure 1 is a side elevation of the improved pum and aerator showing the same applied to t e power plant of a motor vehiele.

Fig. 2 is a longitudinal section through the improved pump and aerator.

Fig. 3 is a fragmentary longitudinal sec tion through the uinp and aerator, taken at right angles to ig. 2.

Fig. 4 is a t ansvcrse section taken on the line 4-4 of Fig. 2, showing the construction of the circulating propeller.

F ig. 5 is a transverse section taken on the line o,-5 of Fig. 2 showing the construction of one of the aerating blades.

Referring to the drawings in detail, wherein similar reference characters designate corresponding parts throughout the several views, the letter A indicates the iniproved pump and aerator, and B the cooling system for an internal combustion engine which the same is associated with.

It to he understood, however, that the improved pump and aeratiing device may be used with any cooling system with any 'type of machine or motor either of the portable n1 stationary type. The cooling system B includes the rm liator l) which is of the usual or any preferred construction and the inlet and outlet pipes E and F. The inlet pipe E communicates with the water jacket of the internal combustion engine in the ordinary manner, While the lower outlet pipe l of the radiator has interposed therein the inun'ovcd pump and aerating device A.

The improved pump and aerating device A includes a horizontally disposed cylinder UL the forward end of which is provided with the rcnan ahlc (up ll which is provided for the purpose of facilitation the positionin; of the operating shaft l2 in the cylinder. 'lhu end of the cylinder opposite in the end which carries the cap 11 is provided with a sleeve 1-; which is adapted to zzcivc the brass bushing 1- for the inner end of thc shaft i2. This end of the shaft is provided with a collar 15 which is formed integrally therewith and secured thereto in any preferred manner and this collar bears against the inner end of the brass bushing14. The end cap 11 is also provided with a bearing, 16 which receives the opposite end of the shaft and this end of the shaft is provided with a collar 17, which is rigidly secured to the shaft and the same is adapted to engage the inner end of the bearing 16. The provision of the collars l5 and 17 absolutely precludes all endwise movement of the shaft and it can be seen that the bushing 14 can he so positioned as to force the collar 17 into the enga ement with the bearing 16. The outer en of the sleeve 16 protrudes beyond the ca 11 and the same is provided with a stufling 0x 18 so as to prevent theleakage of water around the shaft 12 and out of the cylinder. Hard oil cups 1 1 are provided, so as to permit the correct lubrication of. the bearings. .The opposite end of the cylinder has its bearings 13 internally screw threaded as at 19 for the reception of theair inlet pipe 20, the outer end of which is provided with the automatic control valve 21. The

shaft 12 is of hollow formation and has its bore communicating with the bore of the intake pipe 20, so that the air from said pipe may be taken into the shaft. The extreme forward end of the shaft 12 has keyed or otherwise secured thereto a drive ulley 22, which may be driven in any preerred manner from the power plant D. A belt 23 is shown for driving the pulley 22 and this belt may also be connected to the fan pulley for drivingthe fan. If so desired, the shaft 12 may be'formed in two sections, a hollow section 24 and the solid section 25. \Vhen the shaft is made in this manner the forward end of the hollow sec tion is provided with a socket for receiving the inner end of the solid structure. The forward end of the cylinder 11) has conimunicating with its lower end the outlet pipe F of the radiator B or if so desired the'cylinder itself may be provided with an integral depending pipe section 27 which may be connected through the medium of a flexible hose 28 with the outlet pipe F of the radiator. The opposite upper end of the cylinder 10 is provided with a forwardly and upwardly inclined pipe 29 which is connected to the inlet end of the water jacket of the power plant in the usual or any preferred manner.

Directly in front of the depending pipe 27 the shaft has secured thcrcto a circulating propeller 30 which is adaptcd to force cooling fluid in a solid strcam against the aerating blades 31, which will hc hcreinafter more fully described. The circulating propeller 30 as shown includes a hub 32 which is keyed or otherwise secured to the shaft and the outwardly radially extending diastood that more or less can be used if so desired. In fact good results may be obtained by the use of a single aerating blade. The aerating blades 31 are of-hollow formation and communicate with ports 34 formed in the hollow portion of the shaft 12 and the air is adapted to be sucked through the intake pipe 20, the hollow portion of the shaft 12, through the ports 34, and through the hollow blades into the water or other cooling fluid in the cylinder. Each of the aerating blades includes a hollow shank and the inclincd side wings 36 which are connected at one of their edges which forms a substantially V-shaped arrangement in cross section. The converging sides of the wings or plates forms a sharp end for cutting through the water. As the shaft is rotated the converged portion of the blade will cut through the water and create a suction in rear thereof for sucking the air into the water through the hollow portion of the shaft 12.

The automatic cut off 21 includes a casing 37 which is formed by enlarging the 11 per end of the pipe 20 and the upper end 0 the casing is provided with a removable top wall 38, which supports the removable air intake nozzle 39. The lower end of the air 'intake nozzle 39 is provided with a valve seat 40 on which is adapted to fit the semispherical valve 41. The valve 41 is of hollow formation so as to effectively reduce the weight thereof and this valve is guided in its -movcmcnt by depending guide fingers 42;

which are carried by the nut -13 which is providcd for holding the air intake nozzle :19 in place. The valve 41 carries a depending valvc stcm 41 which is in turn connected to a spider 45. which is carried by the float 16. which may be formed of cork or any preferred material. The float -16 is provided with an axial bore so as to permit the flow of air through the samc. The air intake nozzle v 39 is also provided with a manually operated valve 4'? which is provided with an operating rod -18. which luay'cxtcnd to the dash board of a motor vehicle. so as to permit the drivcr of the vehicle to rcadilv opcn and close the same.

The cylinder 10 is providcd at spaced points with a plurality of inwardly cntcudmg fins or stationary hulllc blades 49, brtwccn which the aerating blades 31 are adapted to ride. The iuncr edgcs of thc baftlc blades 4!) are inclincd as at 50 so as to conform to the configuration of the aerating blades and those stationary balll'c blades 4!) are provided so as to prevent the radial movement of the cooling fluid in the cylinder and thereby permit the blades to act on the same with a maximum amount of efficiency.

In operation of the improved pump and cooling fluid aerator, when the power plant is in operation, the shaft 12 in the cylinder will be rotated therewith, which will cause the circulating propeller to force the water through the cylinder in a solid sheet against the aerating blades 31. The bladvs 31 out through the water and create a suction at the following ortions thereof and suck in the air throng 1 the intake nozzle 39, valve 21, the pipe 20 and the shalt 12. The battle blades -19 form an ellective means, as stated, for preventing a whirling motion of the water through the cylinder. Thus it can be seen that an effective means is provided for circulating and aerating the water for c0oling systems. hen the motor is stopped the cooling fluid will enter the shaft 12 through the aerating blades 31 and flow into the pipe 21 and the valve casing 37, which will raise the float l6 and force the valve 41 on its seat, which will effectively prevent the escape of the cooling fluid from the air intake nozzle. The manual operated valve H is pro vided for preventingthe inlet of: the air to the shaft when necessary or desirable.

Changes in details may be made without departing from the spirit or scope of the invention; but,

I claim:

1. The combination with a cooling system, of a propeller mounted in the cooling fluid thereof, and means for conducting air into the fluid in advance of the propeller.

2. The combination with a cooling system, of air intake members arranged in the cooling fluid of the system, and means for forcing the cooling fluid against said members.

3. The combination with a cooling system, of an internal combustion engine, of rotatable air intake members arranged in the cooling fluid thereof, and means for directing; the cooling fluid against the rotary air intake members.

at. The combination with a cooling system, of an internal combustion engine, of a pump therefor, and means arranged in advance of the pump for introducing air into the cooling fluid.

5. The combination with a cooling system, of an internal combustion engine, of a circulating pump therefor, and rotary air intaking members arranged in the cooling fluid at one side of the pump circulating member.

6. The combination with a cooling system of an internal combustion engine, of a circulating pump therefor, rotatable air intaking members arranged in the cooling fluid, and means for simultaneously operating the circulating pump and the rotatable air intaking members.

7. The combination with the cooling system of an internal combustion engine, of a circulating pump arranged in the system, rotatable air intaking members arranged in the cooling fluid of the system, and auto matic means for shutting oil' the atmospheric connection of the air intaking members upon the stopping of the circulating pump.

8. The combination with the cooling systern of an internal combustion engine, of a circulating pump therefor, rotatable air intaking members mounted in the coolin fluid of the system, means for rotatin said rotatable air intaking' members, and automatic means for shutting off the atmospheric vounection of the air intaking members when the same are not in motion.

9. The combination with a cooling system of an internal combustion engine, of a rotatable propeller arranged in the cooling fluid thereof, rotatable air intaking members an ranged in the cooling fluid, means for rotatinn the propeller and air intaking members, and means for cutting oil the supply of air to the air intaking member.

10. The combination with the cooling system of an internal combustion engine including a radiator and an outlet pipe, of a circulating and aerating attachment for the cooling fluid therefor including a cylinder, means connecting one end of the cylinder with the outlet pipe of the radiator, means operatively connecting the opposite end of the cylinder with the cooling jacket of the internal combustion engine, a propeller arranged in the cylinder, and air intahing members arranged in the cylinder in advance oi the propeller.

1.1. The combination with the cooling sys tern of an internal combustion engine including a radiator and an outlet pipe, of a circulating and aerating attachment for the cooling fluid including a c linder, means connecting one end of the cy inder with the outlet pipe of the radiator, means connecting the opposite end of the cylinder with the water jacketof the internal combustion engine, a hollow shaft rotatably mounted in the cylinder, means for rotating the shaft from the internal combustion engine, a propeller carried by the shaft for rotation therewith arranged in the cylinder in ad Vance of the outlet pipe of the radiator, and air intaking blades carried by the shaft and communicatinv with the bore thereof.

12. The combination with the cooling system of an internal combustion engine including a. radiator and an outlet ipe, of a circulating and aerating device or the cooling fluid thereof including a. horizontally dis posed cylinder, means operatively connecting one end of the cylinder with the outlet pipe of theradialtor, means connecting the opposite end with the water 'acket of the internal combustion engine, a ollow shaft arranged longitudinally in the cylinder and rotatably carried by the terminals thereof, means connecting the hollow shaft with the atmosphere, a ropeller carried b the shaft for rotation t erewith, a plura ity of radially arranged air intaking blades carried by the hollow shaft commumcatingwith the bore thereof, means for rotating the shaft, and automatic means arranged in the means for connecting the hollowv shaft with the atmosphere for cutting off the connection with the hollow shaft when the cooling fluid flows into said shaft.-

"13. The combination with the cooling sys tem of an internal combustion engine including a radiator, a water jacket for the internal combustion engine, inlet and outlet pipes connecting the radiator with the water jacket, of a device for circulating and aerating the cooling fluid comprising a cylinder, means connecting one end of the cylinder with the outlet pipe of the radiator, means connecting the'o posite end of a cylinder with the water jac et of the internal combustion engine, a hollow shaft rotatably mount' ed in the cylinder, means for rotating the shaft, a propeller carried by the shaft for rotation therewith arranged in the cylinder in advance of the connection of pipe of the radiator therewith, a plurality of radially extending air intaking blades carried by the shaft and communicating with the bore thereof, an air intake pipe communicating with the hollow shaft, an automatic valve arran ed in the pipe adapted to close when the coo ing fluid flows within said intake pipe, and a manually operated valve arran ed in said air intake pipe.

14. n a circulating and aerating device for cooling systems, an air intaking blade including a hollow stem, and outwardly extending converging wings carried by the' hollow stem;

including a hollow the outlet 15. In a circulating and aerating device for cooling systems, an air intaking blade stem, outwardly extending wings carried by the stem, the wings being arranged in converging relation to each other to provide a cutting edge.

16. The combination with a cooling system for internal combustion en ines, comprising a radiator, a water jacket for the internal combustion engine, outlet and inlet pipes for the radiator, of a circulating and aerating device for the cooling fluid of the system comprising a horizontally disposed cylinder, bearings carried by the opposite ends of the cylinder, bly mounted 111 said bearings, means for rotating the hollow shaft, an air intake communicating with one end of the hollow shaft, a valve casing formed on the upper end of the intake pipe, :1 float arranged in said valve casing, an air intake nozzle carried by the valve casing, valve carried by said'float and arranged to fit on said seat, a ropeller secured to said shaft, an air intalie blade carried by the shaft and communicating with the bore thereof. said blade including a hollow stem, outwardly extending converging win s, and means connecting the cylinder with t e outlet pipe of the radiator and with the water jacket of the internal combustionengine.

17. As a new article of manufacture, a cylinder, operatively extending inletand outletpipes formed on the o )posite ends of the cylinder, a rotatable shaf t arranged longitudinally in the cylinder, said shaft having an axial bore, a propeller carried by the shaft for rotation therewith, a plurality of outwardly extending air intake blades arranged intermediate the inlet and outlet pipes, an air intake pipe carried by the cylinder and communicating with the bore of the shaft, and an automatic manually operated valve arranged in said air intake pipe.

FRANK F. Kn usE.

a hollow semi-spherical a hollow shaft rotata- 

